Thomas de Clare
Lord of Thomond
Events
Date of Birth:between 1244 and 1247
The estimated date is given by Frame (ODNB).
Date of Death: 29 August 1287.
The date is given by Frame (ODNB).
Relationships
Father: Richard de Clare (1222 - 1262), earl of Gloucester and of Hertford.
This relationship is given by Frame (ODNB) and by Altschul.
Mother: Maud, daughter of John de Lacy, earl of Lincoln.
This relationship is given by Frame (ODNB).
Spouse: Juliana (died 1300), daughter of Maurice fitz Maurice Fitzgerald.
This relationship is given by Hartland, by Frame (ODNB), and by Altschul.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Gilbert de Clare (3 February 1281 - 1308) married Isabella.
Richard de Clare (died 1318) married Joanna, probably daughter of Thomas fitz Maurice.
Margaret de Clare (about 1286 - 1333) married (1) Gilbert de Umfreville; married (2) Sir Bartholomew Badlesmere.
Matilda de Clare (died 1327) married Robert Clifford, Lord Clifford on 12 November 1295.
References
Altschul, Michael. A Baronial Family in Medieval England: The Clares 1217-1314 (Baltimore: The Johns Hopkins Press, 1965).
Cokayne, George Edward, and Vicary Gibbs; et al. The complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct, or dormant [2nd ed.]. (London: St. Catherine Press, 1910-59).
Frame, Robin. “Clare, Thomas de (1244x7-1287)” in the Oxford Dictionary of National Biography (Oxford University Press, 2004; online edn, October 2005).
Hartland, Beth. "English Lords in Late Thirteenth and Early Fourteenth Century Ireland: Roger Bigod and the de Clare lords of Thomond" in English Historical Review Vol. CXXII No. 496 (2007).